The epidemiology of Creutzfeldt-Jakob disease in Canada: a review of mortality data.

Creutzfeldt-Jakob disease (CJD), and particularly its transmissibility through blood and blood products, has become a focus of concern in Canada. The recent identification of new variant CJD led to a review of the Canadian mortality database to identify any clustering of CJD by age, sex, or geographic location

Before you go into dairying (1993)

When you begin dairying, you should realize that you are making a long-term commitment. If you are planning to enter the dairy business, you need to evaluate available resources and the management skills required for a profitable enterprise. Consider your experience, your interest, management ability, financing, available labor, milk market, feed resources and available facilities.Reviewed October 1, 1993

Is Creutzfeldt-Jakob disease transmitted in blood?

Creutzfeldt-Jakob disease (CJD) has been considered infectious since the mid-1960s, but its transmissibility through the transfusion of blood or blood products is controversial. The causative agent's novel undefined nature and resistance to standard decontamination, the absence of a screening test, and the recognition that even rare cases of transmission may be unacceptable have led to the revision of policies and procedures worldwide affecting all facets of blood product manufacturing from blood collection to transfusion. We reviewed current evidence that CJD is transmitted through blood

Before you go into dairying

When you begin dairying you should realize that you are making a long-term commitment. If you are planning to enter the dairy business, you need to evaluate available resources and the management skills required for a profitable enterprise. Consider your experience, your interest, management ability, financing, available labor, milk market, feed resources and available facilities.B. J. Steevens and R. E. Ricketts (Department of Dairy Science, College of Agriculture), Jim Rook and Robert Ruchlow (Area Dairy Specialists)Revised 3/82/8

Boldness traits, not dominance, predict exploratory flight range and homing behaviour in homing pigeons

This study investigated whether consistent individual differences in behaviour (particularly exploratory tendency and object neophilia) were associated with the tendency to explore in free-ranging scenarios. This was tested in homing pigeons. The results showed that birds that were more likely to explore in the loft were also more likely to explore the local area during self-driven flights. When birds were released from a fixed release points, those which had explored less took more tortuous and longer routes back to the loft. This demonstrates the cost associated with lack of exploratory behaviour, and also links traits measured in laboratory scenarios to behaviour in free-ranging animals

The 1996 Soft State Transitions of Cygnus X-1

We report continuous monitoring of Cygnus X-1 in the 1.3 to 200 keV band using ASM/RXTE and BATSE/CGRO for about 200 days from 1996 February 21 to 1996 early September. During this period Cygnus X-1 experienced a hard-to-soft and then a soft-to-hard state transition. The low-energy X-ray (1.3-12 keV) and high-energy X-ray (20-200 keV) fluxes are strongly anti-correlated during this period. During the state transitions flux variations of about a factor of 5 and 15 were seen in the 1.3-3.0 keV and 100-200 keV bands, respectively, while the average 4.8-12 keV flux remains almost unchanged. The net effect of this pivoting is that the total 1.3-200 keV luminosity remained unchanged to within about 15%. The bolometric luminosity in the soft state may be as high as 50-70% above the hard state luminosity, after color corrections for the luminosity below 1.3 keV. The blackbody component flux and temperature increase in the soft state is probably caused by a combination of the optically thick disk mass accretion rate increase and a decrease of the inner disk radius.Comment: 18 pages, 1 PostScript figure. Accepted for ApJ

Wheat silage for dairy cattle (1993)

Wheat silage as a feed for dairy cows has become popular recently in Missouri, even though little information about nutrient content and optimum cutting stage is available. Some recent research at MU provides new information about wheat silage for dairy cows. This new information includes the changes in energy, protein and minerals with stage of maturity at harvest and recommendations for cutting and storage.Reviewed October 1993 -- Extension website

Developing a core outcome set for periodontal trials

Acknowledgments The authors wish to thank all patients and professionals who took part in the Delphi process and face-to-face consensus meeting. We wish to thank Jillian Sutherland, Shirley Bell, Margaret Mooney and Lorna Barnsley for helping to organise the face-to-face consensus meeting. Patient participant recruitment to this study was facilitated by SHARE–the Scottish Health Research Register. SHARE is supported by NHS Research Scotland and the Chief Scientists Office Funding: TL received research funding for the core outcome set development for the prevention and management of periodontal diseases which was provided by the Tattershall fund, Dundee Dental School. This grant provided funds for the e-Delphi software, SHARE services and the face-to-face consensus meeting travel and catering costs. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscriptPeer reviewedPublisher PD